/*
 * Copyright (C) 2000-2008 Jens Nixdorf and various contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies of the Software, its documentation and marketing & publicity
 * materials, and acknowledgment shall be given in the documentation, materials
 * and software packages that this Software was used.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.mopore.jat.util;

import java.io.File;
import java.util.HashSet;
import java.util.Set;

public class FileFinder {
	
	
	private final String[] postfixes;
	
	public FileFinder( String... postfixes ){
		this.postfixes = postfixes;
	}


	public Set<File> findFiles(final File directory) {
		Set<File> fileSet = new HashSet<File>();
		
		File[] childs = directory.listFiles();
		
		for ( File child : childs ){
			boolean isDiretory = child.isDirectory();
			
			if ( isDiretory ){
				Set<File> subFiles = findFiles( child );
				fileSet.addAll( subFiles );
			}
			else {
				boolean matches = matchCriteria( child );
				if ( matches ){
					fileSet.add( child );
				}
			}
		}
		
		return fileSet;
	}


	private boolean matchCriteria(File child) {
		String name = child.getName();
		for ( String criteria : postfixes ){
			boolean fulfilled = name.endsWith( "." + criteria );
			if ( fulfilled ){
				return true;
			}
		}
		return false;
	}
	

	
	
}
